Definition of ides noun from the Oxford Advanced Learner's Dictionary



BrE BrE//aɪdz//
; NAmE NAmE//aɪdz//
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the middle day of the month in the ancient Roman system, from which other days were calculated the ides of March Word Originlate Old English: from Old French, from Latin idus (plural), of unknown origin.
See the Oxford Advanced American Dictionary entry: ides